main: support highlighting paths with specific styles

If there are styles starting with `*.`, consider these "glob matchers"
and style according to the matching glob. This allows users to color
paths matching patterns in any way desired.

Fixes: #605

highlighters/main/main-highlighter.zsh

@@ -1258,6 +1258,16 @@ _zsh_highlight_main_highlighter_check_path()
     fi
   else
     if [[ -L $expanded_path || -e $expanded_path ]]; then
+      for key in ${(k)ZSH_HIGHLIGHT_STYLES}; do
+        case $key in
+          "*."*) ;;
+          *) continue ;;
+        esac
+        case $arg in
+          *.$key[3,-1]) REPLY=$key ;;
+        esac
+      done
+
       return 0
     fi
   fi